1. A new model of car has just been introduced (by them).
2. The roof of my school was repaired yesterday (by workers).
3. The fishing village was hit by a violent storm.
4. The internet is used by millions of people every day.
5. Her work has already been finished (by her).
6. Minh's Maths homework is being done at present (by Minh).
7. All the questions can't be answered (by the boy).
8. I was bought a new shirt yesterday by my mother.
9. The yard was being cleaned at 9.00 yesterday (by Lam).
10. Gold was found here many years ago (by them).

11. A new model of car has just been introduced.
12. The roof of my school was repaired by workers yesterday.
13. The fishing village was hit by a violent storm.
14. The internet is used by millions of people everyday.
15. Her work has already finished by her.
16. Minh's Maths homework is being done by Minh at present.
17. All the questions can't be answered by the boy.
18. I was bought a new shirt by my mother yesterday.
19. The yard was being cleaned by Lam at 9.00 yesterday.
20. Gold was found here many years ago.